Breastfeeding moms using tobacco or e cigarettes can pass harmful chemicals to their babies. Dont smoke or vape to ensure the healthiest start for your baby. Learn more at https: www.cdc.gov breastfeeding special circumstances hcp vaccine medication Why you should avoid vaping if you want a baby in future VARTA Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times Health Problems Caused by Secondhand Smoke Smoking and Tobacco Use CDC